2,5-Dichlorohydroquinone
Also known as: 1,4-Benzenediol,2,5-dichloro, 2,5-Dichloro-1,4-benzenediol, 2,5-Dichloro-1,4-dihydroxybenzene, 2,5-Dichloro-1,4-hydroquinone, 2,5-Dichloro-p-hydroquinone, 2,5-Dichloro-p-benzohydroquinone, 2,5-Dichloro-4-benzenediol, 2,5-Dichloro-4-hydroxyphenol, 2,5-Dichlorohydroquinol, 1,4-Dichloro-2,5-dihydroxybenzene, NSC 48667
2,5-Dichlorohydroquinone (CAS 824-69-1) is a compound in the Alcohols category listed in the Jingsj chemical database. It has the molecular formula C6H4Cl2O2 and a molecular weight of 179.00100 g/mol. Key properties include a melting point of 168-171 °C(lit.), a boiling point of 274ºC at 760 mmHg, a density of 1.624g/cm3 and a flash point of 119.5ºC. It is classified under GHS with signal word Danger and hazard statements H314 — Causes severe skin burns and eye damage. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 824-69-1
- Jingsj CID
- J-967772-9
- Molecular Formula
- C6H4Cl2O2
- Molecular Weight
- 179.00100 g/mol
- Category
- Alcohols
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | 168-171 °C(lit.) |
|---|---|
| Boiling Point | 274ºC at 760 mmHg |
| Density | 1.624g/cm3 |
| Flash Point | 119.5ºC |
| Exact Mass | 177.95900 |
| PSA | 40.46000 |
| LogP | 2.40460 |
| Refractive Index | 1.642 |
GHS Safety & Compliance
- H314 — Causes severe skin burns and eye damage
Customs & Trade Information
| HS Code | 2908199090 |
|---|---|
| Summary | HS: 2908199090. derivatives of polyphenols or phenol-alcohols containing only halogen substituents and their salts. VAT:17.0%. tax rebate rate:9.0%. supervision conditions:None. MFN tariff:5.5%. general tariff:30.0% |
Frequently Asked Questions
What is the CAS number of 2,5-Dichlorohydroquinone?
The CAS number of 2,5-Dichlorohydroquinone is 824-69-1.
What are the molecular formula and molecular weight of 2,5-Dichlorohydroquinone?
2,5-Dichlorohydroquinone has molecular formula C6H4Cl2O2 and molecular weight 179.00100 g/mol.
Is 2,5-Dichlorohydroquinone hazardous?
2,5-Dichlorohydroquinone has GHS signal word Danger and hazard statements H314 — Causes severe skin burns and eye damage.
What are the upstream and downstream products of 2,5-Dichlorohydroquinone?
For 2,5-Dichlorohydroquinone, Upstream Products: 2-Chloro-1,4-benzoquinone, 2,5-Dichloro-1,4-benzoquinone, Hydroquinone; Downstream Products: Chloroneb, 2,5-Dichloro-1,4-benzoquinone, N,N'-Diphenyl-p-phenylenediamine.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "2,5-Dichlorohydroquinone (CAS 824-69-1)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-967772-9 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.